Firearm.



G. S. LEWIS.

FIREARM.

APPLlcmox mw um. 15, 19m.

Patented Apr. 20, 1915.

3 SHEETS-SEEE 2 Inventor: M Ms G. S. LEWIS.

FIREARM.

APPLICATION man JAN. la. 1915.'

1,136,247. Patent-.ea Apr. 2o, 1915.

3 SHEETS-SHEET 3.

A I Inventor: by QW SSW;

\ 4UNTTED sTATEs PATENT oEEicE.. A

GEORGE S. LEWIS,OF SIRING'IEIELID, MASSACHUSETTS, ASSIGNOR TO J. STEVENS ARMS & TOOL COMPANY, 0F CHICOPEE FALLS,

MASSACHUSETTS.

To all whom it may concern Be it knownthat I, GEORGE S. LEWIS, a

` 'to improve generally guns of this type by arms now known.;

-and are chambered so simplifying-the construction thereof, reducing the machine Work to a minimum, rendering the cpperating elements of the various mechanisms more positive and invariable in their actions and otherwise increasing the efficiency and reducing the cost of manufacture of these guns.

In accordance with the invention, the frame, breech, 'and tang are cast one piece as' to permitthe ready mounting therein of Athe required firing and controlling mechanism, and special provision is made for the placing of the firing pins 'and' their main springs.

Another feature of the invention '1s concerned with the provision of an extractor which is actuated positively upon thebreaking of the gun and is subsequently restored positively to retracted position upon the subsequent closing of the breech. The improved extractor has coperating therewith certain devices which, while insuring its usual operation so long sembled, will automaticallypermit the extractor tovremain inactive when the parts of the gun are disassembled. 'The last named devices may also serve to disconnect automatically the cooking lever from its'actuat-A in member. v f

he improved gun alsoembodies certain features of construction concerning thesears, the safety button, etc., by which a sured than has been possible in similar fire- Reference is now to be had tothe accompanying'drawings forV a detailed description of the invention, in whichv.

Figure- 1 isgaside view of a double barreled shot gun embodying the present invention. Fig. 2 isoa fragmentary view on'a 'somewhat largerV scale,l partly in side ele- I FIREARM.

Specification of Letters Patent.

Application led January 15, 1915.

i vation and l single casting ll0 is a detail view in type as the gun is as- A Vthe breech b2 -pins for the various MASSACHUSETTS, Av CORPORATION 0F Patented' Apr. 2o, 1915. Serial No. 2,296.

t partly in section, of the gun shown 1n Fig. l, parts being broken away to show the relative arrangement of the firing and controlling devices. Fig: 3 is a fragmentary View somewhat similar to Fig. 2 but showing the gun in a broken position, for the ejection of shells. Fig. 4 is a View in section taken on the plane indicated by the line 4-4 of Fig. 8 and looking in the direction of the arrows. Fig. 5 is a fragmentary view in section taken on the plane indicated ,by the line 5 5 of Fig. 3 and showing in detail the improved safety button. Fig. 6 is a view in perspective of the embodying the frame, breech and the tang of the improved gun.' F ign-f7 is a fragmentary view in which are indicated the barrel and frame of the improved g'un ljust before they are completely disassembled, the-fore-end having been previously removed. Fig. 8 is a detail view in perspec tive of the improved abutment for the firing pins and their main springs. Fig. 9 is ya detail view in perspective of the supporting post for .the abutment shown in Fig. 8. Fig.

perspective of the improved safety button.

.The gun in which the present improvements are embodied is of. the hammerless and comprises generally a stock a to which is affixed a frame .7) .on which are pivotally supported the barrelsvc, as through a pivot pin Z2', Vthe barrels being maintained Referring particularly to Figf, it will be t evident that the frame b s cast integral with and the tang b3, the latter Icomprising generally a. hollow frame extending rearwardly from the breech and being open lin its sides to lpermit the firing and controlling devices to bereadily mounted therein.

The skeleton character ofthe casting shown in Fig., 6- and the accessibility to the chamber formed therein makes it unnecessary to machine the interior before mounting the :mechanism to be laterdescribed. The cast#` nig in its rough state will, of course, befinished at the exposed places and along such surfaces as are intended Ato have snug-engagement with coperatingparts, Vsuch as the front wail of the breech .2=and theupper face of the frame b, but aside from these finishing operations, mediately drilled to receive. the supporting devices which are to be the. casting can be imfA mounted therein. For instance, in the improved firearm, the wall'of the breech b2 is drilled through, as at b", to receive the respective firing pins f which maybe formed integral with the plungers f on which are secured abutments f2 for the respective main springs g. These main springs g are seated on a yoke h, the web of which is slotted, as at L, to receive loosely the plungers f. The voke h may conveniently be mounted in the wall of the frame by placing it in position and then passing a pin i through holes b5 formed in the wall of the frame and holes h2 drilled in the arms of the yoke. Obviously, the pressure of the main springs g has a tendency to rock the yoke h about its supporting pin i and it is therefore necessary to counteract this Vtendency by-mounting a post k in the frame b to the rear of the yoke h and in such position that the web of the yoke seats on a shoulder la with which the post is provided. The post k may conveniently be placed in the slot b which is formed to receive the triggers 1 V and may be fastened `in osition by means of a pin-fm, passed through holes 117 drilled in the frame b and through a registering hole k2 drilled in the post lc.

T o the rear of the post k are mounted the Y usual triggers Z with which ooperate respectively searsrn, each of which is formed with an arm n for ooperation with the respective trigger, and a hook n2 for the retention of the respective plunger f in retracted position, each plunger being formed at its rear end with a notch f3 for engagement by the said. hook. The sears n, are mounted on a common pivot pin o which may be passed through the sears and through holes b5 drilled in the tang b3 at the rear end thereof. On the same pin 0 and between the sears ln is pivotally mounted the swinging safety latch p at the lower end and on the opposite faces of which are formed laterall pins p arranged to be swung in the path of the respective triggers l and prevent movenient thereof for the purpose of firing the gun. The upper end of the latch p is engaged by a reoiprocable safety button g, one side of which is formed with a slot g', the bottom of which is reversely beveled, as vat g2, to coperate with a spring-pressed keeper r. The safety button g is engaged by the usual lookin bolt e', the movement of which is initiated y the top lever e, the locking bolt serving to force the safety button to safety position'whenever the gun is bro en for reloading, this movement of the safety button, of course, serving to swing vthe pins p of the safety latch p in the path of the triggers l. This condition is maintained until the safety buttony g is manually slid to firing position, whereupon the pins p are swung out of the path of the triggers Z and y the' latter can` then be actuated` to rock the scars n about their pivotal support o and disengage the hooks n2 from the notches f3, thereby permitting the main springs g to force the respective firing pins intocontact with the appropriate shell and explode the same in the usual manner.

rlhe gun is cocked by the devices now to be described. The barrels o have slidably mounted on their lower faces, adjacent their rear ends, a cooking member s which may be 'of the respective abutments f2 on the firing pins f. From this description, it will be evident that when the gun is broken by actuation of the top lever e, in the usual manner, the cooking member s is carried by the barrel c and tends to move with respect to the cooking levers t', the engagement of the noses t of these levers with the notch s3, however, serving to rock the levers about their supporting pin t3 and thereby press the tails t2 of the levers into operative engagement `with the abutments f2, respectively, and retract the firing pins f against the action ofr the respective main springs g. This retraction of the pins f continues until the notches f at their'rear ends are engaged respectively by the hooks n2 of the respective springpressed sears n. When the barrel is later returned to normal position with respect to the frame b and the breech Z22, the firing pins f are -in positionI for firing although, as pointed out before, the piece cannot be fired until the safety button g is slid to firing position.

It isobvious that in cooking the gun'in the manner just described, the tendency is for the, cooking member s to be slid longitudinally under the pressure exerted thereon by the noses t of the cooking levers t and, aocordingly, it i's necessary to make adequate provision for the oolmteraction of this tendency. In the illustrated embodimentT the cooking member .s is formed on its upper side with a lug s which enga s a short plunger rod u, the end of which is beveled, as atl u', and engaged -by a spring-pressed abutment d which is mountedin the rear end of the fore-end d and cperates with the pivot pin b for maintaining the barrels c in pivotal engagement with the frame vb. So long as the 'fore-end d is in its normal position along the underside of the barrelsc, the end of the abutment d rests against the beveled i' ace u' of the plunger u and thereby maintains the latter in its innermost position and holds it with the cooking member s against amena.

I in Fig. '7, lthe cooking member frame b without ca the cooking levers t,'in the manner referred to. If, however, the fore-end d v"with the abutment d be removed and the gun be held downward, `as as is illust-rated 8 will'slide, in a lonnotch s is out ofv engagement with the noses i of the cockinglevers t. If the piece is then broken, the Lcooking member s will with the barrel pointin `would be most natural an under the influence of gravit move-past the noses t of the cooking le# t vers t,.as`indicated in. Fig. 7, and the bar'- rels will be readily disassellliled fromthe e to cocked Advanta is taken of t e cooking devices just descri d to provide in combination therewith `a simpley andY eieient extractoroperable positlvely. The extractor is indicated generally at v and is shown as formed-with a cylindricalI extension Iv of the same general form as the plunger u and mounted slidablyiin the lower face vof the barrels c and `in alinement with the said plunger. 'The underside of the cylindrical 'ment d will cause the body 'v' of the extractor v is notched, as at la, to receive a lug s formed on the cockng .member s, the outward movement of the extractor being limited by th'e lug 's. Movement of. the extractor is caused by the abutrod u through the coperation of its beveled end u withthe abutment d of the fore-end d durin the -breaking of the gun. Y

It w' be evident by reference to Figs.

.2 and 3 that as the barrels c moveA about the pivot pin b', relative movementbetween the plunger rod u and the stationary abutlunger u to move rearwardly and actuate the extractor v positively. This rearward movement of the plunger u does not of course, interfere with" the function of the cooking member s but, on the contrary, causes a like rearward. movement of the cocking member to com' pensate for its arcuate movement.- As noted before, when the foreend d is'removed, as shown in Fig. 7, and the'plunger rod u is 'permittedto slide freely under 'the influence of gravity, the .barrels Vc can be removed readily from the frame b 'and without actu.- ation of either the cocking'levers t or the extractor 11.A 'l

From the somewhat detailed descri tion given of the character of thecasting s own-\ m Fig. -6 and the means for and method ot' mounting the nism in thecasting, thegreat saving in the cost of manufacture; of the im roved gun and the simplicity'of'construction and the be v proved devi inst the end of the fse'ars, the sa fore-end, of a coc sp1 cirriedslidably "adm im move the flxtractorpositively in one direction, an

'free xslnzlablejwith respect firing and controlling-'mecha-- of operation of the opconsequent eiliciency be appreciated.

erating parts, will While most of the features of the gun are novel elements and the new features of those improved, lare pointed out devices 'which are 1n the appended claims, andI the substitution of mechanical equivalents for'these novel elements the rearrangement of parts or mere change inmechanical form of the imv are to be deemed within the spirit of invention.

- I claim as my invention:

1'.- In a double barreled gun, triggers, sears therefor, a common pivot in on which the sears are carried, and a saiiety latchcarried pivotally-on.said pin. v In a rearr.n,^a chambered frame, plimgers: springs there' or, a main springs comprising a yoke mounted in the chamber and a post engaging the yoke to vhold thesame against movement, and a' pm passed through the walls of the chamber and the arms of the yoke to support the same. 3. -In a double barreled gun, triggers, sears therefor, a common ivot in on which the sears are carried, an a sa ety latchl carried pivotally on said pin and the sears. j

4. In' a double barreled gun, triggers, sears therefor, acommon ivot in on which the sears are-carried, an a sa, ety latch carried pivotallyon said in and disposed between ety latch being provided at its-lowergendpand on opposite faces with pins'jto the" triggers respectively.

flIn--a firearm, t e combination with the member. andextaetor carried slidably by t ebarrel,

member and by the fore-end and cooperating with the plunger to cause sliding movement-thereof whenthe gun is broken, the. l rwith the coc v U to the'extractor to inoperative positions whenever the foreend'is removed. l

This speciication -signed I and witnessed this 6th ay of January A. D. 1915.

" GEORGE S. LEWIS.

Signed in the presence of- Aram F. Cnc

CHARLES R. LomAND.-

ms carried 7 thereby, main fixed rabutment for the.

by the barrelA and v 'g member, being a disposed between y 

